Remove all Libraw implementation embeded in libkdcraw.

Adjust all settings in config widget accordingly with extra packs used by libraw, especially Raw quality setting.
Add new methods to get whole options used to compile Libraw.
Bump API/ABI id.
This version of libkdcraw break BC. It must be published with next KDE 4.12.0 and next digiKam 4.0.0.
Libraw compatible with this implementation is 0.16.0 which have been ported.
BUGS: 307146
FIXED-IN: 4.0.0
REVIEW: 110962